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Forum
17

Attempt to begin a new transaction when a transaction is active

._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause com.objectdb.o.UserException: Attempt to begin a new transaction when a transaction is active
Manual
17

CRUD Database Operations with JPA

) require an active transaction. In the example above, every Point object is first constructed as ... a managed object (usually by retrieval) and invoke the remove method within the context of an active ... . You have to obtain a managed entity object (e.g. by retrieval) and modify it within an active transaction: em
Manual
17

DELETE Queries in JPA/JPQL

the entity objects into an EntityManager. Removing these objects from the EntityManager within an active ... queries can only be executed within an active transaction and the changes are visible to other users ... (); A TransactionRequiredException is thrown if no transaction is active. On success - the executeUpdate method
Manual
17

Locking in JPA

. A TransactionRequiredException is thrown if there is no active transaction when lock is called because explicit locking requires an active transaction. A LockTimeoutException is thrown if the requested pessimistic lock ... rollback). ObjectDB supports also releasing a lock explicitly while the transaction is active, as
Result
17

ObjectDB Object Database Features

/JDO annotations (e.g. @Entity, @Id, @Index). Transparent activation (no activation depth) - objects ... (can be injected to a @Version field). Optimistic locking (always active). Implicit pessimistic
Manual
17

UPDATE SET Queries in JPA/JPQL

objects into an EntityManager. Updating the relevant entity object fields within an active transaction ... queries can only be executed within an active transaction and the changes are visible to other users ... (); A TransactionRequiredException is thrown if no transaction is active. On success - the executeUpdate
Manual
17

Working with JPA Entity Objects

via an EntityManager’s persist method, which must be invoked within an active transaction. On transaction commit ... Entities section. If a managed entity object is modified within an active transaction the change ... the EntityManager’s remove method within an active transaction. The entity object changes its state from
Manual
17

Deleting JPA Entity Objects

from the database it has to first be retrieved (no matter which way) and then in an active ... . A TransactionRequiredException is thrown if there is no active transaction when remove is called because operations that modify the database require an active transaction. Cascading Remove Marking a reference field
Issue
17

Deadlock on Schema Update during Multithreading activity

A possible deadlock was detected when new types are registered during multithreading activity against ObjectDB. Until this issue is fixed, the recommended workaround is to complete registration of all the persistable types before starting any multithreading activity against ObjectDB. A single class
Issue
16

Generating new activation code gives 500 server error

Trying to generate a new activation code using our site license key gives a 500 error every time. Code generated using version 2.7.4_04 and openjdk 1.8.0_171. There was a problem, thank you for this report. Please try again now. spiffy